Home / 115,915.06-160,011.96-75,663.33

Finding the Fourth Proportional to 115,915.06, 160,011.96 and 75,663.33

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Solution

The fourth proportional to 115,915.06, 160,011.96 and 75,663.33 is: 104,447.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,915.06 : 160,011.96 = 75,663.33 : x
  2. Step 2: Convert to fraction form
    115,915.06/160,011.96 = 75,663.33/x
  3. Step 3: Cross multiply
    115,915.06x = 160,011.96 × 75,663.33
  4. Step 4: Simplify right side
    115,915.06x = 12,107,037,733.43
  5. Step 5: Solve for x
    x = 12,107,037,733.43/115,915.06
  6. Step 6: Final answer
    x = 104,447.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.